Manual
GearCase
The worm gear case has been filled with grease at
the factory. If disassembled for any reason,
lubricate with 2 ounces of shell grease, part number
737-0168.
IMPORTANT:Do not overfill the gear case. Damage to
the seals could result. Be sure the vent plug is free of
grease in order to relieve pressure.
DriveandShiftingMechanism
Remove rear cover. Oil any chains, sprockets,
gears, bearings, shafts, and shifting mechanism at
least once a season. Use engine oil or a spray
lubricant. Avoid getting oil on rubber friction wheel
and aluminum drive plate. See Figure 23.
C.oln
Figure 23
SECTION8: SERVICINGYOURSNOWTHROWER
WARNING: Before servicing, repairing,
or inspecting, disengage all clutch levers
and stop engine. Wait until all moving
parts have come to a complete stop.
Disconnect spark plug wire and ground it
against the engine to prevent unintended
starting.
Engine
Refer to the separate engine manual packed with your
unit for all engine maintenance procedures.
Augers
The augers are secured to the spiral shaft with two
shear bolts and hex lock nuts. If you hit a hard foreign
object or ice jam, the snow thrower is designed so that
the bolts may shear. Refer to Figure 22.
If the augers will not turn, check to see if the bolts
have sheared. Replacement shear bolts and hex
lock nuts have been provided with the snow
thrower. When replacing bolts, spray an oil
lubricant into shaft before inserting new bolts.
IMPORTANT: NEVER replace the auger shear bolts with
standard hex bolts. Any damage to the auger gearbox
or other components as a result of doing so will NOT be
covered by your snow thrower's warranty.
ShavePlateandSkidShoes
The shave plate and skid shoes on the bottom of
the snow thrower are subject to wear. They should
be checked periodically and replaced when
necessary.
Skid
Bolts
Figure 24
To remove skid shoes, remove the four carriage
bolts, cupped washers and hex nuts which attach
them to the snow thrower. Reassemble new skid
shoes with the four carriage bolts, cupped washers
(cupped side goes against skid shoes) and hex
nuts. See Figure 24.
To remove shave plate, remove the carriage bolts,
cupped washers and hex nuts which attach it to the
snow thrower housing. Reassemble new shave
plate, making sure heads of carriage bolts are to
the inside of housing. Tighten securely.
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